Monday's ETF Winners & Losers

ETFs related to oil services were tacking on big gains, including the Oil Services HOLDRs ( OIH), which rose $3.67, or 2.6%, to $145.27. The move was driven by advances in Halliburton ( HAL) and Baker Hughes ( BHI).

Shares of the Internet HOLDRs ( HHH) were down 1.3% after First Global Securities said Yahoo! ( YHOO) would face pressure from rivals Google ( GOOG) and Microsoft ( MSFT) after a delay in an advertising system upgrade.

The Internet Infrastructure HOLDRs ( IIH) ETF, meanwhile, was higher by 1.6%. Akamai Technologies ( AKAM), one of the fund's largest holdings, was trading up $1.49, or 4.1%, to $38.08.